Loans and Allowance for Loan Losses (Details 7) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Contract
Sep. 30, 2012
Contract
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 8 8
Pre-modification outstanding recorded investment $ 6,860 $ 6,860
Post-modification outstanding recorded investment 6,876 6,876
Commercial [Member] | Other loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 0 0
Pre-modification outstanding recorded investment      
Post-modification outstanding recorded investment      
Consumer [Member] | Other loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 0 0
Pre-modification outstanding recorded investment      
Post-modification outstanding recorded investment      
Residential one-to-four family [Member] | Real estate loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 5 5
Pre-modification outstanding recorded investment 4,491 4,491
Post-modification outstanding recorded investment 4,507 4,507
Commercial real estate [Member] | Real estate loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 3 3
Pre-modification outstanding recorded investment 2,369 2,369
Post-modification outstanding recorded investment 2,369 2,369
Equity lines of credit [Member] | Real estate loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 0 0
Pre-modification outstanding recorded investment      
Post-modification outstanding recorded investment      
Construction [Member] | Real estate loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 0 0
Pre-modification outstanding recorded investment      
Post-modification outstanding recorded investment      
Indirect auto [Member] | Other loans [Member]
   
Troubled Debt Restructurings on Financing Receivables [Abstract]    
Number of Contracts 0 0
Pre-modification outstanding recorded investment      
Post-modification outstanding recorded investment